Method for manufacturing a component of a rotating machine
US-2018361479-A1 · Dec 20, 2018 · US
Rotors (specially for elastic fluids F04D29/26)
Rotors (specially for elastic fluids F04D29/26) · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F04D29/18 |
| Official title | Rotors (specially for elastic fluids F04D29/26) |
| Display label | Rotors (specially for elastic fluids F04D29/26) |
| Total patents | 198 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 22 |
| 2017 | 16 |
| 2018 | 17 |
| 2019 | 18 |
| 2020 | 19 |
| 2021 | 26 |
| 2022 | 16 |
| 2023 | 18 |
| 2024 | 21 |
| 2025 | 13 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluid driving device, motor assembly and centrifugal friction clutch thereof
US-10145427-B2 · Dec 4, 2018 · US
Fuel system for an aircraft
US-2018327105-A1 · Nov 15, 2018 · US
Pump housing with an interior for accommodating a pump rotor
US-10119550-B2 · Nov 6, 2018 · US
Aluminum brazing of hollow titanium fan blades
US-2018216626-A1 · Aug 2, 2018 · US
Pump unit
US-10027199-B2 · Jul 17, 2018 · US
Torque converter impeller including impeller shell having thinned section
US-2018195522-A1 · Jul 12, 2018 · US
Rotor blade for a compressor and compressor having such a rotor blade
US-10012235-B2 · Jul 3, 2018 · US
Swimming training apparatus
US-2018178105-A1 · Jun 28, 2018 · US
Fuel delivery pump
US-2018138775-A1 · May 17, 2018 · US
Fluid pump with a rotor
US-9964115-B2 · May 8, 2018 · US
Subsea compressor or pump with hermetically sealed electric motor and with magnetic coupling
US-9954414-B2 · Apr 24, 2018 · US
Implantable pump impeller thermal knockdown
US-2018085508-A1 · Mar 29, 2018 · US
Drain pump
US-2018073186-A1 · Mar 15, 2018 · US
Irregular-pitch regenerative blower and optimization design method for same
US-2017363091-A1 · Dec 21, 2017 · US
Fluid pump with a rotor
US-2017356454-A1 · Dec 14, 2017 · US
Circulation pump assembly
US-2017324298-A1 · Nov 9, 2017 · US
Turbo compressor
US-9765791-B2 · Sep 19, 2017 · US
Centrifugal pressure booster and method for modifying or constructing a centrifugal pressure booster
US-2017261004-A1 · Sep 14, 2017 · US
Mechanical seal
US-2017198813-A1 · Jul 13, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D29/18?
- CPC F04D29/18 is the Cooperative Patent Classification code for “Rotors (specially for elastic fluids F04D29/26).”
- How many patents are filed under CPC F04D29/18 (Rotors (specially for elastic fluids F04D29/26))?
- Our database includes 198 publications tagged with this CPC code.
- Is patent activity under CPC F04D29/18 growing?
- Publication counts under this code: 21 in 2024 vs 13 in 2025 (latest complete years).